Record Date

CS:01:100/26-27 19th July, 2026 BSE Ltd. National Stock Exchange of India Limited Phiroze Jeejeeboy Towers Exchange Plaza, 5th Floor 25th Floor, Dalal Street Plot No.C/1, G-Block Mumbai – 400 001 Bandra Kurla Complex, Bandra (E) Mumbai – 400 051 BSE Scrip Code: 500110 NSE Trading Symbol: CHENNPETRO ISIN: INE178A01016 Dear Sir, Sub: FIXATION OF RECORD DATE FOR THE PURPOSE OF FINAL DIVDEND FOR THE YEAR 2025-26 This is further to our communication dated 24th April 2026, wherein it was informed that the Board of Directors of Chennai Petroleum Corporation Limited at their Board Meeting had recommended a final equity dividend of Rs. 54/- per share (i.e.@ 540% on the paid up equity share capital) for the financial year 2025-26, subject to the approval of the members of the Company in the forthcoming Annual General Meeting (AGM) of the Company. Pursuant to Regulation 42 of SEBI (Listing Obligations and Disclosure Requirements) Regulations 2015, it is hereby informed that the Company has fixed Friday, the 07th August, 2026 as the “Record date” for the purpose of ascertaining the eligibility of members for payment of final equity dividend of Rs. 54/- (Rupees Fifty-Four Only) per equity share on the face value of Rs. 10/- each for the year 2025-26. The final dividend, if approved by the members in the forthcoming AGM, will be paid to the eligible members within the stipulated period of 30 days from the date of AGM. Members may note that the Income Tax Act, 2025, mandates that dividends paid or distributed by a company is taxable in the hands of members. The Company shall therefore be required to deduct tax at source (“TDS”) at the time of making the payment of dividend. In order to enable the Company to determine the applicable TDS rate, members are requested to submit the relevant documents on or before Friday, the 14th August, 2026. The detailed communication regarding TDS on dividend is provided on the link: https://cpcl.co.in/investors/share-holder-information/investor-relations/. The above is for your information and record please. Thanking you, Yours faithfully, for Chennai Petroleum Corporation Limited Lalit Kumar Mohanty Company Secretary